Method AlignedFileAdaptor

fs/aligned-file.cpp:43–58

        IOAlloc m_allocator;

        AlignedFileAdaptor(IFile *underlay_file, uint32_t alignment, bool align_memory,
                           bool ownership, IOAlloc *allocator)
            : ForwardFile_Ownership(underlay_file, ownership)
        {
            // if no allocator specified, initialized by align_memory
            if (allocator == nullptr) {
                // if align_memory, bind to aligned alloc, else use default
                if (align_memory) {
                    m_allocator = AlignedAlloc(alignment);
                }
            } else {
                m_allocator = *allocator;
            }
            m_alignment = alignment;
            m_align_memory = align_memory;
        }
        void* mem_alloc(uint64_t size)
        {
            void* ptr = nullptr;